Add a 0 to the end of a decimal number to make sure it's always 2 decimals?

Posted by tarnfeld on Stack Overflow See other posts from Stack Overflow or by tarnfeld
Published on 2010-04-15T12:20:42Z Indexed on 2010/04/15 12:23 UTC
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jQuery

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vat

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rounding

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maths

I am using the following code to work out an inc and ext VAT price:

$('#totalexvat').text(totalprice);
var vat = totalprice / 100 * 17.5;
vat = roundNumber(vat,2);
$('#totalincvat').text(totalprice-vat);

Sometimes i get .3 or .9 instead of what I would like to be .30 or .90 because it's money, is there a way to do this?

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